Adding test cases as per PR comments.

packages/server/src/automations/tests/loop.spec.ts

@@ -0,0 +1,45 @@
+import * as automation from "../index"
+import * as triggers from "../triggers"
+import { loopAutomation } from "../../tests/utilities/structures"
+import { context } from "@budibase/backend-core"
+import * as setup from "./utilities"
+
+describe("Attempt to run a basic loop automation", () => {
+  let config = setup.getConfig(),
+    table: any,
+    row: any
+
+  beforeEach(async () => {
+    await automation.init()
+    await config.init()
+    table = await config.createTable()
+    row = await config.createRow()
+  })
+
+  afterAll(setup.afterAll)
+
+  async function runLoop(loopOpts?: any) {
+    const appId = config.getAppId()
+    return await context.doInAppContext(appId, async () => {
+      const params = { fields: { appId } }
+      return await triggers.externalTrigger(
+        loopAutomation(table._id, loopOpts),
+        params,
+        { getResponses: true }
+      )
+    })
+  }
+
+  it("attempt to run a basic loop", async () => {
+    const resp = await runLoop()
+    expect(resp.steps[2].outputs.iterations).toBe(1)
+  })
+
+  it("test a loop with a string", async () => {
+    const resp = await runLoop({
+      type: "String",
+      binding: "a,b,c",
+    })
+    expect(resp.steps[2].outputs.iterations).toBe(3)
+  })
+})

packages/server/src/automations/triggers.ts

@@ -109,8 +109,13 @@ export async function externalTrigger(
     }
     params.fields = coercedFields
   }
-  const data = { automation, event: params }
+  const data: Record<string, any> = { automation, event: params }
   if (getResponses) {
+    data.event = {
+      ...data.event,
+      appId: context.getAppId(),
+      automation,
+    }
     return utils.processEvent({ data })
   } else {
     return automationQueue.add(data, JOB_OPTS)

packages/server/src/tests/utilities/structures.ts

@@ -1,8 +1,14 @@
-import { roles, permissions } from "@budibase/backend-core"
+import { permissions, roles } from "@budibase/backend-core"
 import { createHomeScreen } from "../../constants/screens"
 import { EMPTY_LAYOUT } from "../../constants/layouts"
 import { cloneDeep } from "lodash/fp"
-import { TRIGGER_DEFINITIONS, ACTION_DEFINITIONS } from "../../automations"
+import { ACTION_DEFINITIONS, TRIGGER_DEFINITIONS } from "../../automations"
+import {
+  Automation,
+  AutomationActionStepId,
+  AutomationTriggerStepId,
+} from "@budibase/types"
+
 const { v4: uuidv4 } = require("uuid")
 
 export const TENANT_ID = "default"
@@ -116,6 +122,63 @@ export function basicAutomation() {
   }
 }
 
+export function loopAutomation(tableId: string, loopOpts?: any): Automation {
+  if (!loopOpts) {
+    loopOpts = {
+      option: "Array",
+      binding: "{{ steps.1.rows }}",
+    }
+  }
+  const automation: any = {
+    name: "looping",
+    type: "automation",
+    definition: {
+      steps: [
+        {
+          id: "b",
+          type: "ACTION",
+          stepId: AutomationActionStepId.QUERY_ROWS,
+          internal: true,
+          inputs: {
+            tableId,
+          },
+          schema: ACTION_DEFINITIONS.QUERY_ROWS.schema,
+        },
+        {
+          id: "c",
+          type: "ACTION",
+          stepId: AutomationActionStepId.LOOP,
+          internal: true,
+          inputs: loopOpts,
+          blockToLoop: "d",
+          schema: ACTION_DEFINITIONS.LOOP.schema,
+        },
+        {
+          id: "d",
+          type: "ACTION",
+          internal: true,
+          stepId: AutomationActionStepId.SERVER_LOG,
+          inputs: {
+            text: "log statement",
+          },
+          schema: ACTION_DEFINITIONS.SERVER_LOG.schema,
+        },
+      ],
+      trigger: {
+        id: "a",
+        type: "TRIGGER",
+        event: "row:save",
+        stepId: AutomationTriggerStepId.ROW_SAVED,
+        inputs: {
+          tableId,
+        },
+        schema: TRIGGER_DEFINITIONS.ROW_SAVED.schema,
+      },
+    },
+  }
+  return automation as Automation
+}
+
 export function basicRow(tableId: string) {
   return {
     name: "Test Contact",

packages/types/src/documents/app/automation.ts

@@ -50,6 +50,7 @@ export interface AutomationStepSchema {
   internal?: boolean
   deprecated?: boolean
   stepId: AutomationTriggerStepId | AutomationActionStepId
+  blockToLoop?: string
   inputs: {
     [key: string]: any
   }